A paper folding machine is provided including a housing having upper and lower fold plates constructed for quick and easy removal of the upper plates from the machine so that repairs can be made. The plates include a paper stop and an adjuster connected to the paper stop for adjusting the position of the paper stop. The upper plate partially encloses a work area and the upper plate has a slot for receiving the adjuster therethrough for easy adjustment and/or removal of the upper plate.
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16. A paper folding machine comprising;
a housing;
a lower fold, plate disposed within and integral with the housing, the lower fold plate providing a work area;
a paper stop adjustably mounted to the lower fold plate;
an adjuster connected to the paper stop for adjusting the position of the paper stop;
an upper plate removably mounted and substantially parallel to the lower fold plate and forming the work area between the upper plate and lower fold plate so that the upper plate may be removed while the lower fold plate remains disposed within the housing, the upper plate partially enclosing the work area and having a slot for receiving the adjuster therethrough;
a roller for advancing a paper sheet into the work area and the paper sheet contacting the fold plate in order to fold the paper; and
an output area for receiving the folded paper;
an attachment lever on the upper plate for attaching the upper plate to the lower fold plate and providing for the upper plate to be easily removed without requiring disassembly of the adjuster or paper stop.
24. A paper folding machine comprising:
a housing with first and second side walls;
a lower fold plate disposed within the housing, the lower fold plate providing a work area;
a paper stop adjustably mounted to the lower fold plate;
an adjuster connected to the paper stop for adjusting the position of the paper stop;
an upper plate removably mounted and substantially parallel to the lower fold plate and forming the work area between the upper plate and lower fold plate so that the upper plate may be removed while the lower fold plate remains disposed within the housing, the upper plate partially enclosing the work area and having a slot for receiving the adjuster therethrough;
a roller for advancing a paper sheet into the work area and the paper sheet contacting the fold plate in order to fold the paper;
an output area for receiving the folded paper; and
an attachment lever on the upper plate for attaching the upper plate to the lower fold plate and providing for the upper plate to be easily removed without requiring disassembly of the adjuster or paper stop.
1. A folding machine comprising:
a housing having a first fold plate and a second fold plate, each permanently attached to and integral with the housing and forming an upper opening;
a processing area including a first removable plate attached and substantially parallel to the first fold plate and forming a first work area between the first removable plate and the first fold plate and a second removable plate attached and substantially parallel to the second fold plate and forming a second work area between the second removable plate and the second fold plate, each removable plate disposed in the housing and accessible through the upper opening for removal by a quick-coupling mechanism having an attachment lever for attaching the first removable plate to the first fold plate and providing removal of the removable plate via a two-step removal process by moving the attachment lever to an unlocked condition and removing the removable plate;
a paper input area adjacent the first removable plate;
a feeding mechanism for feeding paper sheets from the paper input area to the processing area and at least one of the first and second work area and providing processed sheets; and
a paper output area adjacent the second removable plate for outputting the processed sheets.
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The present invention pertains to a paper-folding machine, and in particular a paper-folding machine having at least one removable plate.
Paper folding machines are known that provide for C-folds, Z-folds and half-folds. For example, U.S. Pat. No. 5,554,094, which is incorporated herein by reference, discloses the processing of paper sheets to provide different types of folds. In the Z-fold format, a paper sheet is folded twice to form three sections with the ends of the sheet along opposite sides of the center section. In a C-fold format, the sheet is folded twice with its ends inward and overlapping each other to form three sections. In a half-fold format with a paper sheet is folded once to form two sections. The sheets can also be folded with or without inserts inserted therein.
Referring to
Along the path of the paper sheet 28 through the folding apparatus 12, the folding device 44 has first, second and third stations 64, 66, 68, respectively. Various operations can be performed at these stations, depending upon how the folding device 44 is arranged, to fold the paper sheet 28 in one of the Z-fold, C-fold or half-fold formats.
In
The buckle plate 72 has an adjustable stop 74 positionable by the user depending upon the size of the paper sheet 28. After the paper sheet 28 enters the buckle plate 72, the diverting device 70 moves to its inoperative position shown in phantom line in
At the second station 66, a buckle plate 84 has been set up to accept the paper sheet 28 coming from the cooperating rollers 78, 80 in the third path. The buckle plate 84 has an adjustable stop 86 in the third path for stopping movement of the folded edge 82 of the paper sheet 28 along the third path as shown in position 5d. After the folded edge 82 of the paper sheet 28 is stopped, the cooperating rollers 78,80 drive the intermediate portion of the paper sheet 28 between a nip 88 formed between the lower roller 80 and a roller 90 (position 5e). The roller 90 is continually driven in a clockwise direction, as viewed in
As the paper sheet 28 enters the third station 68, a first bypass device 91 located in the fourth path after the nip 88 deflects the paper sheet 28 into a nip 94 formed between the roller 90 and a roller 96. The roller 96 is continually driven in a counterclockwise direction, as viewed in
In
At the second station 66, the second bypass device 102 has been set up to accept the paper sheet 28 coming from the cooperating rollers 78, 80 in the third path. The second bypass device 102 located in the third path after the nip 76 deflects the paper sheet 28 into the nip 88 formed between the rollers 80, 90 (position 6c).
At the third station 68, the paper sheet 28 enters the buckle plate 104 travelling in a fourth path (position 6d). When the folded edge 82 of the paper sheet 28 engages the adjustable stop 106, further movement thereof in the fourth path is stopped. However, the cooperating rollers 90,96 drive the intermediate portion of the paper sheet 28 between the nip 94, the rollers 90,96 drawing the paper sheet 28 through the nip 94 in a fifth path to create a folded edge 108 at the intermediate portion of the paper sheet 28 between the folded edge 82 and the trailing edge 48 thereof. The paper sheet 28 is delivered into the output device 46. Thus, a C-folded paper sheet is formed.
In
At the second station 66, the output conveyor 100 has been set up to accept the paper sheet 28 coming from the cooperating rollers 78, 80 in the third path. The second bypass device 102 located in the third path after the nip 76 deflects the paper sheet 28 into a fourth path between the nip 88 formed by the rollers 80, 90 (position 7c).
As the paper sheet 28 enters the third station 68, the first bypass device 91 located in the fourth path after the nip 88 deflects the paper sheet 28 into the nip 94 formed between the roller 90 and a roller 96 (position 7e). The rollers 90, 96 draw the paper sheet 28 through the nip 94 sending the paper sheet 28 into the output device 46. Thus, a half-folded paper sheet is formed.
In
As the paper sheet 28 is drawn through the nip 76, the buckle plate 84 at the second station 66 accepts the paper sheet 28 coming from the cooperating rollers 78, 80. The adjustable stop 86 stops the movement of the leading edge 50 of the paper sheet 28 as shown in position 8c. After the paper sheet 28 is stopped, the cooperating rollers 78, 80 drive the intermediate portion of the paper sheet 28 between the nip 88 formed between the rollers 80, 90. The rollers 80, 90 draw the paper sheet 28 through the nip 88 to create a folded edge 112 at the intermediate portion of the paper sheet 28.
As the paper sheet 28 enters the third station 68, the first bypass device 91 located after the nip 88 deflects the paper sheet 28 into the nip 94 formed between the rollers 90, 96 (position 8d). The rollers 90, 96 drawing the paper sheet 28 through the nip 94 sending the paper sheet 28 into the output device 46. Thus, a half-folded paper sheet is formed.
In
As the paper sheet 28 is drawn through the nip 76, the bypass device 102 at the second station 66 located after the nip 76 deflects the paper sheet 28 into the nip 88 formed between the rollers 80, 90 (position 9b). At the third station 68, the paper sheet 28 enters the buckle plate 104 (position 9c). When the paper sheet 28 engages the adjustable stop 106, further movement of the leading edge 50 is stopped. However, the cooperating rollers 90, 96 drive the intermediate portion of the paper sheet 28 between the nip 94. The rollers 90, 96 drawing the paper sheet 28 through the nip 94 to create a folded edge 114 at the intermediate portion of the paper sheet 28. The paper sheet 28 is delivered into the output device 46. Thus, a half-folded paper sheet is formed.
Such known folding machines as discussed above require complicated and expensive electronic controls and sensors in order to provide for the proper processing of the paper sheets. As well, such known folding machines have many plates and other components that must be disassembled when repair or cleaning of the internal parts of the machine is required or to alleviate paper jams. As such plates may be very heavy, operators of the machine may find it difficult to remove the plates, even after disassembly is accomplished.
Therefore, there is desired a paper folding machine that provides for all of the above described folding functions, but provides for inexpensive, uncomplicated processing mechanisms while allowing for easy access to the internal parts of the folding machine when cleaning or repairs are necessary. There is also desired automatic mechanical means for processing different sizes and types of paper sheets.
The above disadvantages are overcome by the present invention that provides for a folding machine comprising a housing having an upper opening, a processing area including a split table disposed in the housing having a first removable plate and a second removable plate accessible through the upper opening, a paper input area adjacent the first plate and a paper output area adjacent the second plate. In an embodiment, the split table includes a first fold plate and a second fold plate and the first removable plate is removably attached to the first fold plate and the second removable plate is removably attached to the second fold plate. In an embodiment, the split table is formed generally in a V-shape. In an embodiment, a main roller is disposed between the first and second fold plates.
In an embodiment, the main roller is mounted at the vertex formed by the V-shaped first and second fold plates. In an embodiment, the first and second fold plates include a paper stop for processing paper sheets received therein. In an embodiment, the first and second removable plates include paper sizing indicia. In an embodiment, the first and second removable plates include type-of-fold indicia. In an embodiment, the first and second fold plates include an adjuster. In an embodiment, the adjuster provides for adjustment of the paper stop according to the type-of-fold indicia and/or paper size indicia provided by the corresponding removable plate. In an embodiment, the adjuster provides for a fold including one of a C-shaped, D-shaped, G-shaped or Z-shaped fold.
In an embodiment, the adjuster provides for adjustment of the paper size or fold type processed by the paper stop. In an embodiment, the adjusters are each slidingly mounted within a slot formed in each of the first and second fold plates. In an embodiment, the adjuster controls the position of the paper stop and an indicia indicator attached thereto. In an embodiment, the fold deflector includes a rigid finger including a stop surface against which a paper sheet abuts in order to fold the sheet.
In an alternate form of the invention a paper folding machine is provided comprising a housing, a lower fold plate disposed within the housing, the lower fold plate providing a work area, a paper stop adjustably mounted to the lower fold plate, an upper plate removably mounted to the lower fold plate and partially enclosing the work area, a roller for advancing paper into the work area and the paper sheet contacting the fold plate in order to fold the paper and an output area for receiving the folded paper.
In an embodiment, the folding machine further comprises an adjuster connected to the paper stop, a slot formed in the upper plate for receiving the adjuster therethrough so that the paper stop may be adjusted from outside the work area without removing the upper plate and the upper plate may be easily removed without requiring disassembly of the adjuster or paper stop. In an embodiment, the slot is arranged vertically along the upper plate. In an embodiment, fold indicia may be provided on the upper plate adjacent the slot in order to identify the positioning of the adjuster. In an embodiment, the machine further comprises a split table having a first side and a second side wherein the first side includes a first lower fold plate and a first upper plate and the second side includes a second lower fold plate and a second upper plate mounted thereto.
In an embodiment, the machine includes a central roller disposed between the first lower fold plate and the second lower fold plate for feeding paper between the first side and second side of the split table. In an embodiment, an input table is adjacent the first side and an output table is adjacent the second side.
For the purpose of facilitating an understanding of the subject matter sought to be protected, there are illustrated in the accompanying drawings embodiments thereof, from an inspection of which, when considered in connection with the following description, the subject matter sought to be protected, its constructions and operation, and many of its advantages should be readily understood and appreciated.
The present invention is described with respect to
First slots 225a, b are formed in the upper plates 224a, b. First slot 225c (
The adjuster 242a, b, in an embodiment, is a lever which may be moved between a locked condition and an unlocked condition. The adjuster lever 242a, b may be grabbed between an operator's fingers and in the unlocked condition may slide the paper stop 240a, b along the plates 222a, b, and 224a, b so that the fingers 244a, b, 246a, b simultaneously move along channels 234a, b, 236a, b. In an embodiment, each adjuster 242a, b includes a lever and a tab 239a, b mounted to the paper stop 240a, b. The adjuster lever 242a pivots between a locked condition, parallel to the plane of the paper stop (as shown in
During operation of the folding machine, paper may abut the fingers 244a, b, 246a, b of the paper stop 240a, b at predetermined locations, arrived at by moving the adjuster 242a, b. The fingers 244a, b, 246a, b include stop surfaces that act to deflect, buckle or stop paper sheets circulating in the folding machine 210 in order to form a nip at the side of the sheet opposite the stop surface, in order to fold the sheets at predetermined locations and fold types. In an embodiment, paper sheets are processed first in left pocket 221b and secondly in right pocket 221a. The folds are formed and paper sheets are processed generally as discussed above for
A roller cover 250 is located between the plates 222a, b, 224a, b and in an embodiment, is attached to the upper plate 224b. Located under the roller cover (
An adjustment knob 260a, b is mounted at the terminal end of each upper plate 224a, b. Whereas the adjusters 242a, b provide for large or gross adjustment of the paper stops 240a, b; the adjustment knobs 260a, b provide for fine adjustment of the paper stops 240a, b. In an embodiment, by rotating the knobs 260a, b either clockwise or counterclockwise the paper stops 240a, b may be adjusted by millimeter increments to adjust for different paper weights/bond types. Each adjustment knob 260a, b is attached to adjustment rods 261a, b, respectively, upon which the paper stop 240a, b is mounted. In an embodiment, the adjustment rod 261a, b is mounted adjacent to the lower fold plate 222a, b and extends between the terminal edge 262a, b and proximal edge 263a, b of the lower fold plates 222a, b (as shown in
A quick-coupling mechanism, for example, attachment levers 265a, b are also provided at the terminal end of the upper plates 224a, b. The attachment lever 265a, b, in an embodiment, is a pivoting lever which has a locked and unlocked condition. The upper plates 224a, b may be quickly and easily mounted on the lower fold plates 222a, b and secured thereto by locking the attachment levers 265a, b. In an embodiment, each attachment lever 265a, b has a swell latch having an expander 266b (see
In an embodiment, the upper plate 224a, b contains few components and is very lightweight. In an embodiment, each upper plate 224a, b is made of metal and weighs less than 5 lbs. Thus, when repair of the machine 210, is required, the upper plates 224a, b can be quickly and easily removed so that the main roller 252 and the paper stops 240a, b may be exposed. These are areas where cleaning is required and paper jams may frequently occur that can be quickly and easily rectified with the construction of the present invention. The construction of the plates 222a, b, 224a, b having slots 225a, b, c, 227a, b allow for access to the adjuster 242a, b and indicator 272a, b from above the upper plates 224a, b, even though such structures are not carried by the upper plates 224a, b. Because these elements 242a, b, 272a, b, and the paper stops 240a, b are supported by the lower fold plate 222a, b; the upper plate 224a, b is lightweight and can be quickly and easily removed. This construction also allows for the lower plates 222a, b, in an embodiment, to be welded to the housing 120 and side walls 216, 217 to provide for a very rigid folding machine structure that allows for the processing of paper sheets with precise, square folds.
As shown in
Turning to
Turning to
A housing frame 320 is provided between the first sidewall 216 and second sidewall 217. Attached to the housing frame 320 is a hinge 322. Attached to the hinge 322 is the pivot arm 312. Within the pivot arm is provided a slide track 326. In an embodiment a sliding or adjustment arm 324 is attached to the pivot arm 312 via a bearing slider 326 mounted in a track of the pivot arm 312 providing a pivot joint 328. At the end opposite the pivot joint 328, the sliding arm is attached to a paper stop box 330. In an embodiment, the paper stop box 330 includes threaded bores which receive threaded portions of the rod 261a therethrough. The paper stop box 130 is also attached to the paper stop 240a.
Operation of the stacking arm 310 will be discussed with respect to
For example, when a small sheet or small fold type is requested, such as “8.5×14 D”, as shown on
In an embodiment, the stacking arm 310 may include a quick release 328 so that the arm 310 may be disengaged from the paper stop 240a and the arm 310 may be operated independently. For example, if a non-standard paper size or paper fold is being processed by the machine 210, it may be desirable to be able to independently set the stacking arm 310 in particular positions on the stacking plate 300, that would not be provided automatically if the arm 310 were attached to the paper stop 240a. In an embodiment, the pivot joint 328 may have associated with it, a quick release pin 329 inserted between the sliding arm 324 and the pivot arm 312. A ring 331 attached to the pin 329 may be pulled to quickly remove the pin 329 so that the pivot arm 312 is disengaged and detached from the sliding arm 324. After release of the pin 329, the stacking arm 310 may be positioned independently from the paper stop 240, to which the sliding arm 324 is attached. In an embodiment the pin 329 will be attached to the housing via a tether, so that the pin 329 cannot be misplaced after removal from the pivot arm 312. A tension knob 327 may be rotated in order to hold the stacking arm 310 in a desired position after manual adjustment.
Turning to
Attached to the frame 332a, b are mounting members 341, 342. In an embodiment, the mounting members 341, 342 form U-shaped hooks which help to mount the cartridge 330 within a paper folding machine. As well, each of the frames 332a, b includes a tab 345 having an aperture 347 formed therein. In an embodiment, upon mounting of the first cartridge 330 within the paper folding machine 210, the frames 332a, b are aligned with the sidewalls 216, 217 so that the mounting members 341, 342 are mounted over posts protruding from the sidewalls 216, 217. Simultaneously, the aperture 347 is aligned with a hole in the wall 216, 217 so that a fastener 348 may be inserted therethrough in order to secure the cartridge 330 within the housing of the paper folding machine. In an alternate embodiment, the cartridge 330 may be mounted permanently within the paper folding machine such as by welding the frame 332a, b to the sidewalls 216, 217.
Turning to
In an alternate embodiment, the cutting wheels 363, 364, 365, 366 may be replaced by other types of wheels which may provide for serrations, perforations or other processing of paper sheets. The second cartridge 350 may also be replaceable and have mounting members and apertures as discussed for the first cartridge 330 of
The matter set forth in the foregoing description and accompanying drawings is offered by way of illustration only and not as a limitation. While particular embodiments have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the broader aspects of applicants' contribution. The actual scope of the protection sought is intended to be defined in the following claims when viewed in their proper perspective based on the prior art.
Abramson, Richard, St. John, Kenneth
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jan 22 2004 | ABRAMSON, RICHARD | HEDMAN COMPANY, THE | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015186 | /0506 | |
Feb 27 2004 | ST JOHN, KENNETH | HEDMAN COMPANY, THE | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015186 | /0506 | |
Feb 27 2004 | JOHN, KENNETH ST | HEDMAN COMPANY, THE | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015231 | /0698 | |
Mar 22 2004 | The Hedman Company | (assignment on the face of the patent) | / |
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